Home / 385,728.15-578,684.61-160,963.55

Finding the Fourth Proportional to 385,728.15, 578,684.61 and 160,963.55

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Solution

The fourth proportional to 385,728.15, 578,684.61 and 160,963.55 is: 241,483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,728.15 : 578,684.61 = 160,963.55 : x
  2. Step 2: Convert to fraction form
    385,728.15/578,684.61 = 160,963.55/x
  3. Step 3: Cross multiply
    385,728.15x = 578,684.61 × 160,963.55
  4. Step 4: Simplify right side
    385,728.15x = 93,147,126,262.54
  5. Step 5: Solve for x
    x = 93,147,126,262.54/385,728.15
  6. Step 6: Final answer
    x = 241,483.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.